var rcds = this.getItem('grdRes').getSelectionModel().getSelection();
if (Ext.isEmpty(rcds)) {
    return;
}

var destStore = this.getItem('grdBoundEquipment').getStore();
Ext.each(rcds,
function(rcd) {
    if (destStore.findRecord('resId', rcd.get('resId')) === null) {
        destStore.insert(0, rcd);
    }
});
this.getItem('grdRes').getSelectionModel().deselectAll();